145621514734057 has 2 divisors, whose sum is σ = 145621514734058. Its totient is φ = 145621514734056.

The previous prime is 145621514734013. The next prime is 145621514734141. The reversal of 145621514734057 is 750437415126541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118097861536656 + 27523653197401 = 10867284^2 + 5246299^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145621514734057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145621514733989 and 145621514734007.

It is not a weakly prime, because it can be changed into another prime (145621514734957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72810757367028 + 72810757367029.

It is an arithmetic number, because the mean of its divisors is an integer number (72810757367029).

Almost surely, 2^{145621514734057} is an apocalyptic number.

It is an amenable number.

145621514734057 is a deficient number, since it is larger than the sum of its proper divisors (1).

145621514734057 is an equidigital number, since it uses as much as digits as its factorization.

145621514734057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112000, while the sum is 55.

The spelling of 145621514734057 in words is "one hundred forty-five trillion, six hundred twenty-one billion, five hundred fourteen million, seven hundred thirty-four thousand, fifty-seven".