1251761352 has 16 divisors (see below), whose sum is σ = 3129403440. Its totient is φ = 417253776.

The previous prime is 1251761351. The next prime is 1251761353. The reversal of 1251761352 is 2531671521.

It is an interprime number because it is at equal distance from previous prime (1251761351) and next prime (1251761353).

It is a super-3 number, since 3×1251761352³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1251761351) 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, 26078338 + ... + 26078385.

It is an arithmetic number, because the mean of its divisors is an integer number (195587715).

Almost surely, 2^1251761352 is an apocalyptic number.

1251761352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1251761352 is an abundant number, since it is smaller than the sum of its proper divisors (1877642088).

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

1251761352 is a wasteful number, since it uses less digits than its factorization.

1251761352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52156732 (or 52156728 counting only the distinct ones).

The product of its digits is 12600, while the sum is 33.

The square root of 1251761352 is about 35380.2395695676. The cubic root of 1251761352 is about 1077.7230699344.

The spelling of 1251761352 in words is "one billion, two hundred fifty-one million, seven hundred sixty-one thousand, three hundred fifty-two".