149680537 has 4 divisors (see below), whose sum is σ = 157558480. Its totient is φ = 141802596.

The previous prime is 149680523. The next prime is 149680541. The reversal of 149680537 is 735086941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 149680537 - 2¹⁵ = 149647769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149680493 and 149680502.

It is not an unprimeable number, because it can be changed into a prime (149680507) 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, 3938943 + ... + 3938980.

It is an arithmetic number, because the mean of its divisors is an integer number (39389620).

Almost surely, 2^149680537 is an apocalyptic number.

It is an amenable number.

149680537 is a deficient number, since it is larger than the sum of its proper divisors (7877943).

149680537 is an equidigital number, since it uses as much as digits as its factorization.

149680537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7877942.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 149680537 is about 12234.3997400772. The cubic root of 149680537 is about 530.9518163880.

The spelling of 149680537 in words is "one hundred forty-nine million, six hundred eighty thousand, five hundred thirty-seven".