148820731 has 2 divisors, whose sum is σ = 148820732. Its totient is φ = 148820730.

The previous prime is 148820729. The next prime is 148820783. The reversal of 148820731 is 137028841.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148820731 - 2¹ = 148820729 is a prime.

It is a super-2 number, since 2×148820731² = 44295219950748722, which contains 22 as substring.

Together with 148820729, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (148820531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74410365 + 74410366.

It is an arithmetic number, because the mean of its divisors is an integer number (74410366).

Almost surely, 2^148820731 is an apocalyptic number.

148820731 is a deficient number, since it is larger than the sum of its proper divisors (1).

148820731 is an equidigital number, since it uses as much as digits as its factorization.

148820731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 148820731 is about 12199.2102613243. The cubic root of 148820731 is about 529.9332193063.

The spelling of 148820731 in words is "one hundred forty-eight million, eight hundred twenty thousand, seven hundred thirty-one".