145622156 has 24 divisors (see below), whose sum is σ = 271278000. Its totient is φ = 68200704.

The previous prime is 145622149. The next prime is 145622171. The reversal of 145622156 is 651226541.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4001 + ... + 17528.

It is an arithmetic number, because the mean of its divisors is an integer number (11303250).

Almost surely, 2^145622156 is an apocalyptic number.

It is an amenable number.

145622156 is a deficient number, since it is larger than the sum of its proper divisors (125655844).

145622156 is a wasteful number, since it uses less digits than its factorization.

145622156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21641 (or 21639 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 145622156 is about 12067.4005485854. The cubic root of 145622156 is about 526.1091062156.

Adding to 145622156 its reverse (651226541), we get a palindrome (796848697).

The spelling of 145622156 in words is "one hundred forty-five million, six hundred twenty-two thousand, one hundred fifty-six".