148931 has 2 divisors, whose sum is σ = 148932. Its totient is φ = 148930.

The previous prime is 148927. The next prime is 148933. The reversal of 148931 is 139841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148931 - 2² = 148927 is a prime.

It is a super-2 number, since 2×148931² = 44360885522, which contains 22 as substring.

Together with 148933, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148931.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 148931.

It is not a weakly prime, because it can be changed into another prime (148933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74465 + 74466.

It is an arithmetic number, because the mean of its divisors is an integer number (74466).

2¹⁴⁸⁹³¹ is an apocalyptic number.

148931 is a deficient number, since it is larger than the sum of its proper divisors (1).

148931 is an equidigital number, since it uses as much as digits as its factorization.

148931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 26.

The square root of 148931 is about 385.9157939240. The cubic root of 148931 is about 53.0064071998.

The spelling of 148931 in words is "one hundred forty-eight thousand, nine hundred thirty-one".