137273772 has 12 divisors (see below), whose sum is σ = 320305496. Its totient is φ = 45757920.

The previous prime is 137273767. The next prime is 137273777. The reversal of 137273772 is 277372731.

It is an interprime number because it is at equal distance from previous prime (137273767) and next prime (137273777).

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

It is a self number, because there is not a number n which added to its sum of digits gives 137273772.

It is not an unprimeable number, because it can be changed into a prime (137273777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5719729 + ... + 5719752.

Almost surely, 2^137273772 is an apocalyptic number.

137273772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

137273772 is an abundant number, since it is smaller than the sum of its proper divisors (183031724).

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

137273772 is a wasteful number, since it uses less digits than its factorization.

137273772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11439488 (or 11439486 counting only the distinct ones).

The product of its digits is 86436, while the sum is 39.

The square root of 137273772 is about 11716.3890341692. The cubic root of 137273772 is about 515.8568348691.

The spelling of 137273772 in words is "one hundred thirty-seven million, two hundred seventy-three thousand, seven hundred seventy-two".