1511256012 has 48 divisors (see below), whose sum is σ = 4032456960. Its totient is φ = 431525952.

The previous prime is 1511256007. The next prime is 1511256013. The reversal of 1511256012 is 2106521151.

It is a super-2 number, since 2×1511256012² = 4567789467612288288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1511256013) 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, 166003 + ... + 174869.

It is an arithmetic number, because the mean of its divisors is an integer number (84009520).

Almost surely, 2^1511256012 is an apocalyptic number.

1511256012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1511256012 is an abundant number, since it is smaller than the sum of its proper divisors (2521200948).

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

1511256012 is a wasteful number, since it uses less digits than its factorization.

1511256012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10910 (or 10908 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1511256012 is about 38874.8763599320. The cubic root of 1511256012 is about 1147.5704250947.

Adding to 1511256012 its reverse (2106521151), we get a palindrome (3617777163).

The spelling of 1511256012 in words is "one billion, five hundred eleven million, two hundred fifty-six thousand, twelve".