148972487 has 4 divisors (see below), whose sum is σ = 151013280. Its totient is φ = 146931696.

The previous prime is 148972477. The next prime is 148972489. The reversal of 148972487 is 784279841.

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 148972487 - 2²⁶ = 81863623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148972489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020287 + ... + 1020432.

It is an arithmetic number, because the mean of its divisors is an integer number (37753320).

Almost surely, 2^148972487 is an apocalyptic number.

148972487 is a deficient number, since it is larger than the sum of its proper divisors (2040793).

148972487 is an equidigital number, since it uses as much as digits as its factorization.

148972487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040792.

The product of its digits is 903168, while the sum is 50.

The square root of 148972487 is about 12205.4285873131. The cubic root of 148972487 is about 530.1132865702.

The spelling of 148972487 in words is "one hundred forty-eight million, nine hundred seventy-two thousand, four hundred eighty-seven".