149534437 has 4 divisors (see below), whose sum is σ = 161037100. Its totient is φ = 138031776.

The previous prime is 149534387. The next prime is 149534443. The reversal of 149534437 is 734435941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73513476 + 76020961 = 8574^2 + 8719^2 .

It is a cyclic number.

It is not a de Polignac number, because 149534437 - 2²⁷ = 15316709 is a prime.

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 149534437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149534447) 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, 5751312 + ... + 5751337.

It is an arithmetic number, because the mean of its divisors is an integer number (40259275).

Almost surely, 2^149534437 is an apocalyptic number.

It is an amenable number.

149534437 is a deficient number, since it is larger than the sum of its proper divisors (11502663).

149534437 is a wasteful number, since it uses less digits than its factorization.

149534437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11502662.

The product of its digits is 181440, while the sum is 40.

The square root of 149534437 is about 12228.4274132040. The cubic root of 149534437 is about 530.7790098797.

The spelling of 149534437 in words is "one hundred forty-nine million, five hundred thirty-four thousand, four hundred thirty-seven".