149557701 has 8 divisors (see below), whose sum is σ = 201240160. Its totient is φ = 98790192.

The previous prime is 149557697. The next prime is 149557703. The reversal of 149557701 is 107755941.

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

It is not a de Polignac number, because 149557701 - 2² = 149557697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149557701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149557703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228355 + ... + 229008.

It is an arithmetic number, because the mean of its divisors is an integer number (25155020).

Almost surely, 2^149557701 is an apocalyptic number.

It is an amenable number.

149557701 is a deficient number, since it is larger than the sum of its proper divisors (51682459).

149557701 is a wasteful number, since it uses less digits than its factorization.

149557701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457475.

The product of its (nonzero) digits is 44100, while the sum is 39.

The square root of 149557701 is about 12229.3786023657. The cubic root of 149557701 is about 530.8065339801.

The spelling of 149557701 in words is "one hundred forty-nine million, five hundred fifty-seven thousand, seven hundred one".