1530924981 has 32 divisors (see below), whose sum is σ = 2197255680. Its totient is φ = 945172800.

The previous prime is 1530924961. The next prime is 1530925003. The reversal of 1530924981 is 1894290351.

It is not a de Polignac number, because 1530924981 - 2⁶ = 1530924917 is a prime.

It is a super-2 number, since 2×1530924981² = 4687462594899700722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530924911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 999186 + ... + 1000716.

It is an arithmetic number, because the mean of its divisors is an integer number (68664240).

Almost surely, 2^1530924981 is an apocalyptic number.

It is an amenable number.

1530924981 is a deficient number, since it is larger than the sum of its proper divisors (666330699).

1530924981 is a wasteful number, since it uses less digits than its factorization.

1530924981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1530924981 is about 39127.0364454043. The cubic root of 1530924981 is about 1152.5275173451.

The spelling of 1530924981 in words is "one billion, five hundred thirty million, nine hundred twenty-four thousand, nine hundred eighty-one".