153997742501 has 2 divisors, whose sum is σ = 153997742502. Its totient is φ = 153997742500.

The previous prime is 153997742447. The next prime is 153997742579. The reversal of 153997742501 is 105247799351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79155009025 + 74842733476 = 281345^2 + 273574^2 .

It is a cyclic number.

It is not a de Polignac number, because 153997742501 - 2¹⁴ = 153997726117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153997742201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76998871250 + 76998871251.

It is an arithmetic number, because the mean of its divisors is an integer number (76998871251).

Almost surely, 2^153997742501 is an apocalyptic number.

It is an amenable number.

153997742501 is a deficient number, since it is larger than the sum of its proper divisors (1).

153997742501 is an equidigital number, since it uses as much as digits as its factorization.

153997742501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2381400, while the sum is 53.

The spelling of 153997742501 in words is "one hundred fifty-three billion, nine hundred ninety-seven million, seven hundred forty-two thousand, five hundred one".