148713931 has 4 divisors (see below), whose sum is σ = 156541000. Its totient is φ = 140886864.

The previous prime is 148713899. The next prime is 148713941. The reversal of 148713931 is 139317841.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 148713931 - 2⁵ = 148713899 is a prime.

It is a super-2 number, since 2×148713931² = 44231666546945522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (148713941) 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, 3913506 + ... + 3913543.

It is an arithmetic number, because the mean of its divisors is an integer number (39135250).

Almost surely, 2^148713931 is an apocalyptic number.

148713931 is a deficient number, since it is larger than the sum of its proper divisors (7827069).

148713931 is an equidigital number, since it uses as much as digits as its factorization.

148713931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7827068.

The product of its digits is 18144, while the sum is 37.

The square root of 148713931 is about 12194.8321431662. The cubic root of 148713931 is about 529.8064215329.

The spelling of 148713931 in words is "one hundred forty-eight million, seven hundred thirteen thousand, nine hundred thirty-one".