148887690 has 32 divisors (see below), whose sum is σ = 408378240. Its totient is φ = 34031424.

The previous prime is 148887689. The next prime is 148887703. The reversal of 148887690 is 96788841.

It is a super-2 number, since 2×148887690² = 44335088467072200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354285 + ... + 354704.

It is an arithmetic number, because the mean of its divisors is an integer number (12761820).

Almost surely, 2^148887690 is an apocalyptic number.

148887690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148887690 is an abundant number, since it is smaller than the sum of its proper divisors (259490550).

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

148887690 is a wasteful number, since it uses less digits than its factorization.

148887690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709006.

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 148887690 is about 12201.9543516602. The cubic root of 148887690 is about 530.0126851123.

It can be divided in two parts, 14888 and 7690, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 148887690 in words is "one hundred forty-eight million, eight hundred eighty-seven thousand, six hundred ninety".