137262989 has 2 divisors, whose sum is σ = 137262990. Its totient is φ = 137262988.

The previous prime is 137262971. The next prime is 137263013. The reversal of 137262989 is 989262731.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100841764 + 36421225 = 10042^2 + 6035^2 .

It is a cyclic number.

It is not a de Polignac number, because 137262989 - 2¹⁶ = 137197453 is a prime.

It is a super-2 number, since 2×137262989² = 37682256298428242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137262949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68631494 + 68631495.

It is an arithmetic number, because the mean of its divisors is an integer number (68631495).

Almost surely, 2^137262989 is an apocalyptic number.

It is an amenable number.

137262989 is a deficient number, since it is larger than the sum of its proper divisors (1).

137262989 is an equidigital number, since it uses as much as digits as its factorization.

137262989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The square root of 137262989 is about 11715.9288577560. The cubic root of 137262989 is about 515.8433274821.

The spelling of 137262989 in words is "one hundred thirty-seven million, two hundred sixty-two thousand, nine hundred eighty-nine".