148691970 has 96 divisors (see below), whose sum is σ = 461289600. Its totient is φ = 33983712.

The previous prime is 148691969. The next prime is 148691999. The reversal of 148691970 is 79196841.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7611 + ... + 18849.

It is an arithmetic number, because the mean of its divisors is an integer number (4805100).

Almost surely, 2^148691970 is an apocalyptic number.

148691970 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 148691970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230644800).

148691970 is an abundant number, since it is smaller than the sum of its proper divisors (312597630).

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

148691970 is a wasteful number, since it uses less digits than its factorization.

148691970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11269 (or 11256 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 148691970 is about 12193.9316875239. The cubic root of 148691970 is about 529.7803409196.

The spelling of 148691970 in words is "one hundred forty-eight million, six hundred ninety-one thousand, nine hundred seventy".