145351561501 has 16 divisors (see below), whose sum is σ = 154180620288. Its totient is φ = 136553760000.

The previous prime is 145351561447. The next prime is 145351561541. The reversal of 145351561501 is 105165153541.

It is a cyclic number.

It is not a de Polignac number, because 145351561501 - 2¹¹ = 145351559453 is a prime.

It is a super-2 number, since 2×145351561501² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145351561541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25492951 + ... + 25498651.

It is an arithmetic number, because the mean of its divisors is an integer number (9636288768).

Almost surely, 2^145351561501 is an apocalyptic number.

It is an amenable number.

145351561501 is a deficient number, since it is larger than the sum of its proper divisors (8829058787).

145351561501 is a wasteful number, since it uses less digits than its factorization.

145351561501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8172.

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 145351561501 in words is "one hundred forty-five billion, three hundred fifty-one million, five hundred sixty-one thousand, five hundred one".