149309542 has 8 divisors (see below), whose sum is σ = 224089632. Its totient is φ = 74613000.

The previous prime is 149309539. The next prime is 149309549. The reversal of 149309542 is 245903941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149309549) 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, 16209 + ... + 23692.

It is an arithmetic number, because the mean of its divisors is an integer number (28011204).

Almost surely, 2^149309542 is an apocalyptic number.

149309542 is a deficient number, since it is larger than the sum of its proper divisors (74780090).

149309542 is a wasteful number, since it uses less digits than its factorization.

149309542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41774.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 149309542 is about 12219.2283717099. The cubic root of 149309542 is about 530.5127848314.

The spelling of 149309542 in words is "one hundred forty-nine million, three hundred nine thousand, five hundred forty-two".