148694990 has 16 divisors (see below), whose sum is σ = 268643520. Its totient is φ = 59257440.

The previous prime is 148694983. The next prime is 148695013. The reversal of 148694990 is 99496841.

It is a happy number.

It is a super-2 number, since 2×148694990² = 44220400102200200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24725 + ... + 30144.

It is an arithmetic number, because the mean of its divisors is an integer number (16790220).

Almost surely, 2^148694990 is an apocalyptic number.

148694990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148694990 is a deficient number, since it is larger than the sum of its proper divisors (119948530).

148694990 is a wasteful number, since it uses less digits than its factorization.

148694990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55147.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 148694990 is about 12194.0555189814. The cubic root of 148694990 is about 529.7839275867.

The spelling of 148694990 in words is "one hundred forty-eight million, six hundred ninety-four thousand, nine hundred ninety".