149555634 has 16 divisors (see below), whose sum is σ = 306067872. Its totient is φ = 48692448.

The previous prime is 149555633. The next prime is 149555657. The reversal of 149555634 is 436555941.

149555634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×149555634² = 44733775322283912, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149555633) 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, 289579 + ... + 290094.

It is an arithmetic number, because the mean of its divisors is an integer number (19129242).

Almost surely, 2^149555634 is an apocalyptic number.

149555634 is an abundant number, since it is smaller than the sum of its proper divisors (156512238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149555634 is a wasteful number, since it uses less digits than its factorization.

149555634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579721.

The product of its digits is 324000, while the sum is 42.

The square root of 149555634 is about 12229.2940924650. The cubic root of 149555634 is about 530.8040885869.

The spelling of 149555634 in words is "one hundred forty-nine million, five hundred fifty-five thousand, six hundred thirty-four".