137435819 has 2 divisors, whose sum is σ = 137435820. Its totient is φ = 137435818.

The previous prime is 137435807. The next prime is 137435863. The reversal of 137435819 is 918534731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137435819 - 2⁸ = 137435563 is a prime.

It is a super-2 number, since 2×137435819² = 37777208688401522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137435219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68717909 + 68717910.

It is an arithmetic number, because the mean of its divisors is an integer number (68717910).

Almost surely, 2^137435819 is an apocalyptic number.

137435819 is a deficient number, since it is larger than the sum of its proper divisors (1).

137435819 is an equidigital number, since it uses as much as digits as its factorization.

137435819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 137435819 is about 11723.3023930973. The cubic root of 137435819 is about 516.0597388421.

The spelling of 137435819 in words is "one hundred thirty-seven million, four hundred thirty-five thousand, eight hundred nineteen".