148994091 has 12 divisors (see below), whose sum is σ = 222156480. Its totient is φ = 96125040.

The previous prime is 148994081. The next prime is 148994093. The reversal of 148994091 is 190499841.

It is not a de Polignac number, because 148994091 - 2¹⁴ = 148977707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148994093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266736 + ... + 267293.

It is an arithmetic number, because the mean of its divisors is an integer number (18513040).

Almost surely, 2^148994091 is an apocalyptic number.

148994091 is a deficient number, since it is larger than the sum of its proper divisors (73162389).

148994091 is a wasteful number, since it uses less digits than its factorization.

148994091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534066 (or 534063 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 148994091 is about 12206.3135712630. The cubic root of 148994091 is about 530.1389110196.

The spelling of 148994091 in words is "one hundred forty-eight million, nine hundred ninety-four thousand, ninety-one".