1254523530 has 128 divisors (see below), whose sum is σ = 3353011200. Its totient is φ = 298450944.

The previous prime is 1254523519. The next prime is 1254523541. The reversal of 1254523530 is 353254521.

It is an interprime number because it is at equal distance from previous prime (1254523519) and next prime (1254523541).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1630986 + ... + 1631754.

It is an arithmetic number, because the mean of its divisors is an integer number (26195400).

Almost surely, 2^1254523530 is an apocalyptic number.

1254523530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1254523530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1676505600).

1254523530 is an abundant number, since it is smaller than the sum of its proper divisors (2098487670).

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

1254523530 is a wasteful number, since it uses less digits than its factorization.

1254523530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 1254523530 is about 35419.2536623797. The cubic root of 1254523530 is about 1078.5152006960.

The spelling of 1254523530 in words is "one billion, two hundred fifty-four million, five hundred twenty-three thousand, five hundred thirty".