145212972 has 36 divisors (see below), whose sum is σ = 357612696. Its totient is φ = 45855360.

The previous prime is 145212937. The next prime is 145212973. The reversal of 145212972 is 279212541.

It is not an unprimeable number, because it can be changed into a prime (145212973) 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, 12429 + ... + 21092.

It is an arithmetic number, because the mean of its divisors is an integer number (9933686).

Almost surely, 2^145212972 is an apocalyptic number.

145212972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145212972 is an abundant number, since it is smaller than the sum of its proper divisors (212399724).

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

145212972 is a wasteful number, since it uses less digits than its factorization.

145212972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33566 (or 33545 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 145212972 is about 12050.4345149874. The cubic root of 145212972 is about 525.6158722552.

The spelling of 145212972 in words is "one hundred forty-five million, two hundred twelve thousand, nine hundred seventy-two".