137812403 has 2 divisors, whose sum is σ = 137812404. Its totient is φ = 137812402.

The previous prime is 137812397. The next prime is 137812447. The reversal of 137812403 is 304218731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137812403 - 2²⁶ = 70703539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137812483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68906201 + 68906202.

It is an arithmetic number, because the mean of its divisors is an integer number (68906202).

Almost surely, 2^137812403 is an apocalyptic number.

137812403 is a deficient number, since it is larger than the sum of its proper divisors (1).

137812403 is an equidigital number, since it uses as much as digits as its factorization.

137812403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 137812403 is about 11739.3527504714. The cubic root of 137812403 is about 516.5306558857.

The spelling of 137812403 in words is "one hundred thirty-seven million, eight hundred twelve thousand, four hundred three".