148921545 has 16 divisors (see below), whose sum is σ = 238516992. Its totient is φ = 79344000.

The previous prime is 148921543. The next prime is 148921561. The reversal of 148921545 is 545129841.

It is not a de Polignac number, because 148921545 - 2¹ = 148921543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148921541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12045 + ... + 21045.

It is an arithmetic number, because the mean of its divisors is an integer number (14907312).

Almost surely, 2^148921545 is an apocalyptic number.

148921545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

148921545 is a deficient number, since it is larger than the sum of its proper divisors (89595447).

148921545 is a wasteful number, since it uses less digits than its factorization.

148921545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10112.

The product of its digits is 57600, while the sum is 39.

The square root of 148921545 is about 12203.3415505754. The cubic root of 148921545 is about 530.0528545841.

The spelling of 148921545 in words is "one hundred forty-eight million, nine hundred twenty-one thousand, five hundred forty-five".