149925887 has 4 divisors (see below), whose sum is σ = 153977976. Its totient is φ = 145873800.

The previous prime is 149925883. The next prime is 149925899. The reversal of 149925887 is 788529941.

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 149925887 - 2² = 149925883 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 (149925883) 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, 2025989 + ... + 2026062.

It is an arithmetic number, because the mean of its divisors is an integer number (38494494).

Almost surely, 2^149925887 is an apocalyptic number.

149925887 is a deficient number, since it is larger than the sum of its proper divisors (4052089).

149925887 is an equidigital number, since it uses as much as digits as its factorization.

149925887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052088.

The product of its digits is 1451520, while the sum is 53.

The square root of 149925887 is about 12244.4226895350. The cubic root of 149925887 is about 531.2417626035.

The spelling of 149925887 in words is "one hundred forty-nine million, nine hundred twenty-five thousand, eight hundred eighty-seven".