157259742 has 8 divisors (see below), whose sum is σ = 314519496. Its totient is φ = 52419912.

The previous prime is 157259737. The next prime is 157259743. The reversal of 157259742 is 247952751.

It is a sphenic number, since it is the product of 3 distinct primes.

157259742 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 157259694 and 157259703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157259743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13104973 + ... + 13104984.

It is an arithmetic number, because the mean of its divisors is an integer number (39314937).

Almost surely, 2^157259742 is an apocalyptic number.

157259742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

157259742 is a wasteful number, since it uses less digits than its factorization.

157259742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26209962.

The product of its digits is 176400, while the sum is 42.

The square root of 157259742 is about 12540.3246369462. The cubic root of 157259742 is about 539.7664078841.

The spelling of 157259742 in words is "one hundred fifty-seven million, two hundred fifty-nine thousand, seven hundred forty-two".