148147631 has 4 divisors (see below), whose sum is σ = 153256200. Its totient is φ = 143039064.

The previous prime is 148147609. The next prime is 148147679. The reversal of 148147631 is 136741841.

It is a happy number.

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 148147631 - 2¹⁸ = 147885487 is a prime.

It is a super-2 number, since 2×148147631² = 43895441141824322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148147591 and 148147600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148147331) 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, 2554241 + ... + 2554298.

It is an arithmetic number, because the mean of its divisors is an integer number (38314050).

Almost surely, 2^148147631 is an apocalyptic number.

148147631 is a deficient number, since it is larger than the sum of its proper divisors (5108569).

148147631 is an equidigital number, since it uses as much as digits as its factorization.

148147631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108568.

The product of its digits is 16128, while the sum is 35.

The square root of 148147631 is about 12171.5911449572. The cubic root of 148147631 is about 529.1330682975.

The spelling of 148147631 in words is "one hundred forty-eight million, one hundred forty-seven thousand, six hundred thirty-one".