157281607 has 16 divisors (see below), whose sum is σ = 183406912. Its totient is φ = 132088320.

The previous prime is 157281559. The next prime is 157281611. The reversal of 157281607 is 706182751.

It is not a de Polignac number, because 157281607 - 2⁷ = 157281479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157281407) 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, 143353 + ... + 144445.

It is an arithmetic number, because the mean of its divisors is an integer number (11462932).

Almost surely, 2^157281607 is an apocalyptic number.

157281607 is a deficient number, since it is larger than the sum of its proper divisors (26125305).

157281607 is a wasteful number, since it uses less digits than its factorization.

157281607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 157281607 is about 12541.1963942839. The cubic root of 157281607 is about 539.7914226472.

The spelling of 157281607 in words is "one hundred fifty-seven million, two hundred eighty-one thousand, six hundred seven".