148931907 has 16 divisors (see below), whose sum is σ = 206820000. Its totient is φ = 95212544.

The previous prime is 148931897. The next prime is 148931929. The reversal of 148931907 is 709139841.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 148931907 - 2⁴ = 148931891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148931947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7219 + ... + 18707.

It is an arithmetic number, because the mean of its divisors is an integer number (12926250).

Almost surely, 2^148931907 is an apocalyptic number.

148931907 is a deficient number, since it is larger than the sum of its proper divisors (57888093).

148931907 is a wasteful number, since it uses less digits than its factorization.

148931907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11670.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 148931907 is about 12203.7660990368. The cubic root of 148931907 is about 530.0651480377.

The spelling of 148931907 in words is "one hundred forty-eight million, nine hundred thirty-one thousand, nine hundred seven".