149165542 has 16 divisors (see below), whose sum is σ = 235794240. Its totient is φ = 70576488.

The previous prime is 149165491. The next prime is 149165593. The reversal of 149165542 is 245561941.

It is an interprime number because it is at equal distance from previous prime (149165491) and next prime (149165593).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43453 + ... + 46759.

It is an arithmetic number, because the mean of its divisors is an integer number (14737140).

Almost surely, 2^149165542 is an apocalyptic number.

149165542 is a deficient number, since it is larger than the sum of its proper divisors (86628698).

149165542 is a wasteful number, since it uses less digits than its factorization.

149165542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515.

The product of its digits is 43200, while the sum is 37.

The square root of 149165542 is about 12213.3345978893. The cubic root of 149165542 is about 530.3421808359.

The spelling of 149165542 in words is "one hundred forty-nine million, one hundred sixty-five thousand, five hundred forty-two".