157409451 has 6 divisors (see below), whose sum is σ = 227369220. Its totient is φ = 104939628.

The previous prime is 157409431. The next prime is 157409489. The reversal of 157409451 is 154904751.

It is not a de Polignac number, because 157409451 - 2⁶ = 157409387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157409431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8744961 + ... + 8744978.

It is an arithmetic number, because the mean of its divisors is an integer number (37894870).

Almost surely, 2^157409451 is an apocalyptic number.

157409451 is a deficient number, since it is larger than the sum of its proper divisors (69959769).

157409451 is a wasteful number, since it uses less digits than its factorization.

157409451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17489945 (or 17489942 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 157409451 is about 12546.2923208412. The cubic root of 157409451 is about 539.9376368310.

The spelling of 157409451 in words is "one hundred fifty-seven million, four hundred nine thousand, four hundred fifty-one".