145345922252 has 24 divisors (see below), whose sum is σ = 267849304800. Its totient is φ = 68875526016.

The previous prime is 145345922251. The next prime is 145345922269. The reversal of 145345922252 is 252229543541.

It is a super-2 number, since 2×145345922252² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145345922251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7236977 + ... + 7257032.

It is an arithmetic number, because the mean of its divisors is an integer number (11160387700).

Almost surely, 2^145345922252 is an apocalyptic number.

It is an amenable number.

145345922252 is a deficient number, since it is larger than the sum of its proper divisors (122503382548).

145345922252 is a wasteful number, since it uses less digits than its factorization.

145345922252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14494145 (or 14494143 counting only the distinct ones).

The product of its digits is 864000, while the sum is 44.

The spelling of 145345922252 in words is "one hundred forty-five billion, three hundred forty-five million, nine hundred twenty-two thousand, two hundred fifty-two".