137644450 has 12 divisors (see below), whose sum is σ = 256018770. Its totient is φ = 55057760.

The previous prime is 137644439. The next prime is 137644459. The reversal of 137644450 is 54446731.

It can be written as a sum of positive squares in 3 ways, for example, as 56806369 + 80838081 = 7537^2 + 8991^2 .

It is not an unprimeable number, because it can be changed into a prime (137644459) 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, 1376395 + ... + 1376494.

Almost surely, 2^137644450 is an apocalyptic number.

137644450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137644450 is a deficient number, since it is larger than the sum of its proper divisors (118374320).

137644450 is a wasteful number, since it uses less digits than its factorization.

137644450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752901 (or 2752896 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 137644450 is about 11732.1971514291. The cubic root of 137644450 is about 516.3207373361.

The spelling of 137644450 in words is "one hundred thirty-seven million, six hundred forty-four thousand, four hundred fifty".