4012531969 has 2 divisors, whose sum is σ = 4012531970. Its totient is φ = 4012531968.

The previous prime is 4012531949. The next prime is 4012532009. The reversal of 4012531969 is 9691352104.

It is an a-pointer prime, because the next prime (4012532009) can be obtained adding 4012531969 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3168338944 + 844193025 = 56288^2 + 29055^2 .

It is a cyclic number.

It is not a de Polignac number, because 4012531969 - 2⁵ = 4012531937 is a prime.

It is a super-2 number, since 2×4012531969² = 32200825604494033922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4012531949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006265984 + 2006265985.

It is an arithmetic number, because the mean of its divisors is an integer number (2006265985).

Almost surely, 2^4012531969 is an apocalyptic number.

It is an amenable number.

4012531969 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012531969 is an equidigital number, since it uses as much as digits as its factorization.

4012531969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 4012531969 is about 63344.5496392547. The cubic root of 4012531969 is about 1589.0570954444.

The spelling of 4012531969 in words is "four billion, twelve million, five hundred thirty-one thousand, nine hundred sixty-nine".