148989615 has 24 divisors (see below), whose sum is σ = 253238160. Its totient is φ = 74784768.

The previous prime is 148989611. The next prime is 148989619. The reversal of 148989615 is 516989841.

It is an interprime number because it is at equal distance from previous prime (148989611) and next prime (148989619).

It is not a de Polignac number, because 148989615 - 2² = 148989611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148989611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12850 + ... + 21519.

It is an arithmetic number, because the mean of its divisors is an integer number (10551590).

Almost surely, 2^148989615 is an apocalyptic number.

148989615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

148989615 is a deficient number, since it is larger than the sum of its proper divisors (104248545).

148989615 is a wasteful number, since it uses less digits than its factorization.

148989615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34411 (or 34394 counting only the distinct ones).

The product of its digits is 622080, while the sum is 51.

The square root of 148989615 is about 12206.1302221466. The cubic root of 148989615 is about 530.1336022509.

The spelling of 148989615 in words is "one hundred forty-eight million, nine hundred eighty-nine thousand, six hundred fifteen".