145261140 has 48 divisors (see below), whose sum is σ = 407961792. Its totient is φ = 38619136.

The previous prime is 145261121. The next prime is 145261147. The reversal of 145261140 is 41162541.

It is a happy number.

It is a super-2 number, since 2×145261140² = 42201597588199200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145261140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145261147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17332 + ... + 24308.

It is an arithmetic number, because the mean of its divisors is an integer number (8499204).

Almost surely, 2^145261140 is an apocalyptic number.

145261140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145261140 is an abundant number, since it is smaller than the sum of its proper divisors (262700652).

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

145261140 is a wasteful number, since it uses less digits than its factorization.

145261140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7336 (or 7334 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 145261140 is about 12052.4329494090. The cubic root of 145261140 is about 525.6739824597.

The spelling of 145261140 in words is "one hundred forty-five million, two hundred sixty-one thousand, one hundred forty".