145538151 has 32 divisors (see below), whose sum is σ = 218211840. Its totient is φ = 85516800.

The previous prime is 145538117. The next prime is 145538167. The reversal of 145538151 is 151835541.

It is a happy number.

It is not a de Polignac number, because 145538151 - 2⁷ = 145538023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145538171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355635 + ... + 356043.

It is an arithmetic number, because the mean of its divisors is an integer number (6819120).

Almost surely, 2^145538151 is an apocalyptic number.

145538151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145538151 is a deficient number, since it is larger than the sum of its proper divisors (72673689).

145538151 is a wasteful number, since it uses less digits than its factorization.

145538151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727.

The product of its digits is 12000, while the sum is 33.

The square root of 145538151 is about 12063.9193879933. The cubic root of 145538151 is about 526.0079213002.

The spelling of 145538151 in words is "one hundred forty-five million, five hundred thirty-eight thousand, one hundred fifty-one".