139155000 has 80 divisors (see below), whose sum is σ = 434767080. Its totient is φ = 37104000.

The previous prime is 139154927. The next prime is 139155011. The reversal of 139155000 is 551931.

139155000 = 124² + 125² + ... + 748².

It is a super-2 number, since 2×139155000² = 38728228050000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10362 + ... + 19638.

Almost surely, 2^139155000 is an apocalyptic number.

139155000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139155000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217383540).

139155000 is an abundant number, since it is smaller than the sum of its proper divisors (295612080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139155000 is an equidigital number, since it uses as much as digits as its factorization.

139155000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9306 (or 9287 counting only the distinct ones).

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 139155000 is about 11796.3977552472. The cubic root of 139155000 is about 518.2026209506.

It can be divided in two parts, 13915 and 5000, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 139155000 in words is "one hundred thirty-nine million, one hundred fifty-five thousand".