1251454233432 has 64 divisors (see below), whose sum is σ = 3447655706880. Its totient is φ = 376107887232.

The previous prime is 1251454233427. The next prime is 1251454233437. The reversal of 1251454233432 is 2343324541521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1251454233427) and next prime (1251454233437).

It is a super-2 number, since 2×1251454233432² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251454233437) 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, 46626948 + ... + 46653779.

It is an arithmetic number, because the mean of its divisors is an integer number (53869620420).

Almost surely, 2^{1251454233432} is an apocalyptic number.

1251454233432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1251454233432 is an abundant number, since it is smaller than the sum of its proper divisors (2196201473448).

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

1251454233432 is a wasteful number, since it uses less digits than its factorization.

1251454233432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93280792 (or 93280788 counting only the distinct ones).

The product of its digits is 345600, while the sum is 39.

Adding to 1251454233432 its reverse (2343324541521), we get a palindrome (3594778774953).

The spelling of 1251454233432 in words is "one trillion, two hundred fifty-one billion, four hundred fifty-four million, two hundred thirty-three thousand, four hundred thirty-two".