137123650 has 12 divisors (see below), whose sum is σ = 255050082. Its totient is φ = 54849440.

The previous prime is 137123647. The next prime is 137123653. The reversal of 137123650 is 56321731.

It is an interprime number because it is at equal distance from previous prime (137123647) and next prime (137123653).

It can be written as a sum of positive squares in 3 ways, for example, as 129345129 + 7778521 = 11373^2 + 2789^2 .

It is not an unprimeable number, because it can be changed into a prime (137123653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1371187 + ... + 1371286.

Almost surely, 2^137123650 is an apocalyptic number.

137123650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137123650 is a deficient number, since it is larger than the sum of its proper divisors (117926432).

137123650 is a wasteful number, since it uses less digits than its factorization.

137123650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742485 (or 2742480 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 137123650 is about 11709.9807856375. The cubic root of 137123650 is about 515.6687200149.

The spelling of 137123650 in words is "one hundred thirty-seven million, one hundred twenty-three thousand, six hundred fifty".