145247152 has 20 divisors (see below), whose sum is σ = 290495296. Its totient is φ = 70280640.

The previous prime is 145247119. The next prime is 145247197. The reversal of 145247152 is 251742541.

145247152 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

145247152 is an admirable number.

It is a super-2 number, since 2×145247152² = 42193470328222208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145923 + ... + 146914.

Almost surely, 2^145247152 is an apocalyptic number.

It is an amenable number.

145247152 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145247152 is a wasteful number, since it uses less digits than its factorization.

145247152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292876 (or 292870 counting only the distinct ones).

The product of its digits is 11200, while the sum is 31.

The square root of 145247152 is about 12051.8526376653. The cubic root of 145247152 is about 525.6571085646.

Adding to 145247152 its reverse (251742541), we get a palindrome (396989693).

The spelling of 145247152 in words is "one hundred forty-five million, two hundred forty-seven thousand, one hundred fifty-two".