137189412 has 18 divisors (see below), whose sum is σ = 346784438. Its totient is φ = 45729792.

The previous prime is 137189383. The next prime is 137189413. The reversal of 137189412 is 214981731.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 82192356 + 54997056 = 9066^2 + 7416^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×137189412³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3810817 = 137189412 / (1 + 3 + 7 + 1 + 8 + 9 + 4 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (137189413) 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, 1905373 + ... + 1905444.

Almost surely, 2^137189412 is an apocalyptic number.

137189412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

137189412 is an abundant number, since it is smaller than the sum of its proper divisors (209595026).

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

137189412 is a wasteful number, since it uses less digits than its factorization.

137189412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810827 (or 3810822 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 137189412 is about 11712.7883955956. The cubic root of 137189412 is about 515.7511419427.

The spelling of 137189412 in words is "one hundred thirty-seven million, one hundred eighty-nine thousand, four hundred twelve".