148688790 has 64 divisors (see below), whose sum is σ = 375860736. Its totient is φ = 37571072.

The previous prime is 148688779. The next prime is 148688801. The reversal of 148688790 is 97886841.

It is an interprime number because it is at equal distance from previous prime (148688779) and next prime (148688801).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77017 + ... + 78923.

It is an arithmetic number, because the mean of its divisors is an integer number (5872824).

Almost surely, 2^148688790 is an apocalyptic number.

148688790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 148688790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187930368).

148688790 is an abundant number, since it is smaller than the sum of its proper divisors (227171946).

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

148688790 is a wasteful number, since it uses less digits than its factorization.

148688790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053.

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

The square root of 148688790 is about 12193.8012941002. The cubic root of 148688790 is about 529.7765641779.

The spelling of 148688790 in words is "one hundred forty-eight million, six hundred eighty-eight thousand, seven hundred ninety".