148815601 has 9 divisors (see below), whose sum is σ = 163721803. Its totient is φ = 135164920.

The previous prime is 148815553. The next prime is 148815613. The reversal of 148815601 is 106518841.

It is a happy number.

The square root of 148815601 is 12199.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2405601 + 146410000 = 1551^2 + 12100^2 .

It is not a de Polignac number, because 148815601 - 2⁷ = 148815473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148815631) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 133635 + ... + 134743.

Almost surely, 2^148815601 is an apocalyptic number.

148815601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

148815601 is the 12199-th square number.

148815601 is the 6100-th centered octagonal number.

It is an amenable number.

148815601 is a deficient number, since it is larger than the sum of its proper divisors (14906202).

148815601 is an frugal number, since it uses more digits than its factorization.

148815601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 34.

The cubic root of 148815601 is about 529.9271301263.

The spelling of 148815601 in words is "one hundred forty-eight million, eight hundred fifteen thousand, six hundred one".