157451646 has 32 divisors (see below), whose sum is σ = 344227968. Its totient is φ = 47615840.

The previous prime is 157451641. The next prime is 157451647. The reversal of 157451646 is 646154751.

157451646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157451641) 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, 34621 + ... + 38903.

It is an arithmetic number, because the mean of its divisors is an integer number (10757124).

Almost surely, 2^157451646 is an apocalyptic number.

157451646 is an abundant number, since it is smaller than the sum of its proper divisors (186776322).

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

157451646 is a wasteful number, since it uses less digits than its factorization.

157451646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4856.

The product of its digits is 100800, while the sum is 39.

The square root of 157451646 is about 12547.9737806548. The cubic root of 157451646 is about 539.9858775456.

It can be divided in two parts, 15745 and 1646, that added together give a triangular number (17391 = T₁₈₆).

The spelling of 157451646 in words is "one hundred fifty-seven million, four hundred fifty-one thousand, six hundred forty-six".