1251652436 has 12 divisors (see below), whose sum is σ = 2305675680. Its totient is φ = 592887960.

The previous prime is 1251652361. The next prime is 1251652483. The reversal of 1251652436 is 6342561521.

It is a junction number, because it is equal to n+sod(n) for n = 1251652396 and 1251652405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8234480 + ... + 8234631.

It is an arithmetic number, because the mean of its divisors is an integer number (192139640).

Almost surely, 2^1251652436 is an apocalyptic number.

It is an amenable number.

1251652436 is a deficient number, since it is larger than the sum of its proper divisors (1054023244).

1251652436 is a wasteful number, since it uses less digits than its factorization.

1251652436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16469134 (or 16469132 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 1251652436 is about 35378.7003153027. The cubic root of 1251652436 is about 1077.6918113961.

It can be divided in two parts, 125 and 1652436, that added together give a palindrome (1652561).

The spelling of 1251652436 in words is "one billion, two hundred fifty-one million, six hundred fifty-two thousand, four hundred thirty-six".