148887990 has 64 divisors (see below), whose sum is σ = 417945600. Its totient is φ = 37612512.

The previous prime is 148887983. The next prime is 148887997. The reversal of 148887990 is 99788841.

148887990 is a `hidden beast` number, since 1 + 488 + 8 + 79 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (148887983) and next prime (148887997).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148887997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9382 + ... + 19641.

It is an arithmetic number, because the mean of its divisors is an integer number (6530400).

Almost surely, 2^148887990 is an apocalyptic number.

148887990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148887990 is an abundant number, since it is smaller than the sum of its proper divisors (269057610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148887990 is a wasteful number, since it uses less digits than its factorization.

148887990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29058 (or 29052 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The square root of 148887990 is about 12201.9666447667. The cubic root of 148887990 is about 530.0130410936.

The spelling of 148887990 in words is "one hundred forty-eight million, eight hundred eighty-seven thousand, nine hundred ninety".