154537913 has 4 divisors (see below), whose sum is σ = 154790628. Its totient is φ = 154285200.

The previous prime is 154537841. The next prime is 154537919. The reversal of 154537913 is 319735451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319735451 = 7 ⋅45676493.

It can be written as a sum of positive squares in 2 ways, for example, as 1075369 + 153462544 = 1037^2 + 12388^2 .

It is a cyclic number.

It is not a de Polignac number, because 154537913 - 2¹⁶ = 154472377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154537919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125438 + ... + 126663.

It is an arithmetic number, because the mean of its divisors is an integer number (38697657).

Almost surely, 2^154537913 is an apocalyptic number.

It is an amenable number.

154537913 is a deficient number, since it is larger than the sum of its proper divisors (252715).

154537913 is an equidigital number, since it uses as much as digits as its factorization.

154537913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252714.

The product of its digits is 56700, while the sum is 38.

The square root of 154537913 is about 12431.3278856283. The cubic root of 154537913 is about 536.6342007202.

The spelling of 154537913 in words is "one hundred fifty-four million, five hundred thirty-seven thousand, nine hundred thirteen".