137340451 has 4 divisors (see below), whose sum is σ = 137365312. Its totient is φ = 137315592.

The previous prime is 137340443. The next prime is 137340481. The reversal of 137340451 is 154043731.

137340451 is a nontrivial binomial coefficient, being equal to C(16574, 2).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154043731 = 881 ⋅174851.

It is a 3-Lehmer number, since φ(137340451) divides (137340451-1)³.

It is a cyclic number.

It is not a de Polignac number, because 137340451 - 2³ = 137340443 is a prime.

It is a deceptive number, since it divides R_137340450.

It is not an unprimeable number, because it can be changed into a prime (137340421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 16573.

It is an arithmetic number, because the mean of its divisors is an integer number (34341328).

Almost surely, 2^137340451 is an apocalyptic number.

137340451 is the 16573-rd triangular number and also the 8287-th hexagonal number.

137340451 is the 5525-th centered nonagonal number.

137340451 is a deficient number, since it is larger than the sum of its proper divisors (24861).

137340451 is an equidigital number, since it uses as much as digits as its factorization.

137340451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24860.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 137340451 is about 11719.2342326621. The cubic root of 137340451 is about 515.9403449954.

The spelling of 137340451 in words is "one hundred thirty-seven million, three hundred forty thousand, four hundred fifty-one".