137445090 has 32 divisors (see below), whose sum is σ = 331200576. Its totient is φ = 36504000.

The previous prime is 137445089. The next prime is 137445097. The reversal of 137445090 is 90544731.

It is not an unprimeable number, because it can be changed into a prime (137445097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1597 + ... + 16656.

It is an arithmetic number, because the mean of its divisors is an integer number (10350018).

Almost surely, 2^137445090 is an apocalyptic number.

137445090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137445090 is an abundant number, since it is smaller than the sum of its proper divisors (193755486).

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

137445090 is a wasteful number, since it uses less digits than its factorization.

137445090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18514.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 137445090 is about 11723.6977954910. The cubic root of 137445090 is about 516.0713425183.

It can be divided in two parts, 1374 and 45090, that added together give a palindrome (46464).

The spelling of 137445090 in words is "one hundred thirty-seven million, four hundred forty-five thousand, ninety".