1012551233 has 4 divisors (see below), whose sum is σ = 1045214208. Its totient is φ = 979888260.

The previous prime is 1012551223. The next prime is 1012551283. The reversal of 1012551233 is 3321552101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1012551233 - 2²⁸ = 744115777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012551199 and 1012551208.

It is not an unprimeable number, because it can be changed into a prime (1012551223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16331441 + ... + 16331502.

It is an arithmetic number, because the mean of its divisors is an integer number (261303552).

Almost surely, 2^1012551233 is an apocalyptic number.

It is an amenable number.

1012551233 is a deficient number, since it is larger than the sum of its proper divisors (32662975).

1012551233 is an equidigital number, since it uses as much as digits as its factorization.

1012551233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32662974.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1012551233 is about 31820.6101921381. The cubic root of 1012551233 is about 1004.1663616565.

The spelling of 1012551233 in words is "one billion, twelve million, five hundred fifty-one thousand, two hundred thirty-three".