157273634 has 12 divisors (see below), whose sum is σ = 274426614. Its totient is φ = 67402944.

The previous prime is 157273619. The next prime is 157273637. The reversal of 157273634 is 436372751.

It can be written as a sum of positive squares in only one way, i.e., 138133009 + 19140625 = 11753^2 + 4375^2 .

It is not an unprimeable number, because it can be changed into a prime (157273637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 802319 + ... + 802514.

Almost surely, 2^157273634 is an apocalyptic number.

157273634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

157273634 is a deficient number, since it is larger than the sum of its proper divisors (117152980).

157273634 is a wasteful number, since it uses less digits than its factorization.

157273634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604849 (or 1604842 counting only the distinct ones).

The product of its digits is 105840, while the sum is 38.

The square root of 157273634 is about 12540.8785178711. The cubic root of 157273634 is about 539.7823013651.

The spelling of 157273634 in words is "one hundred fifty-seven million, two hundred seventy-three thousand, six hundred thirty-four".