157273332 has 12 divisors (see below), whose sum is σ = 366971136. Its totient is φ = 52424440.

The previous prime is 157273331. The next prime is 157273339. The reversal of 157273332 is 233372751.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 157273293 and 157273302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157273331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6553044 + ... + 6553067.

It is an arithmetic number, because the mean of its divisors is an integer number (30580928).

Almost surely, 2^157273332 is an apocalyptic number.

157273332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157273332 is an abundant number, since it is smaller than the sum of its proper divisors (209697804).

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

157273332 is a wasteful number, since it uses less digits than its factorization.

157273332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13106118 (or 13106116 counting only the distinct ones).

The product of its digits is 26460, while the sum is 33.

The square root of 157273332 is about 12540.8664772415. The cubic root of 157273332 is about 539.7819558646.

The spelling of 157273332 in words is "one hundred fifty-seven million, two hundred seventy-three thousand, three hundred thirty-two".