149713537 has 4 divisors (see below), whose sum is σ = 150373296. Its totient is φ = 149053780.

The previous prime is 149713519. The next prime is 149713549. The reversal of 149713537 is 735317941.

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 a de Polignac number, because none of the positive numbers 2^k-149713537 is a prime.

It is a super-2 number, since 2×149713537² = 44828286322100738, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149713537.

It is not an unprimeable number, because it can be changed into a prime (149713517) 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, 329539 + ... + 329992.

It is an arithmetic number, because the mean of its divisors is an integer number (37593324).

Almost surely, 2^149713537 is an apocalyptic number.

It is an amenable number.

149713537 is a deficient number, since it is larger than the sum of its proper divisors (659759).

149713537 is an equidigital number, since it uses as much as digits as its factorization.

149713537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659758.

The product of its digits is 79380, while the sum is 40.

The square root of 149713537 is about 12235.7483220275. The cubic root of 149713537 is about 530.9908330894.

The spelling of 149713537 in words is "one hundred forty-nine million, seven hundred thirteen thousand, five hundred thirty-seven".