155082397397 has 2 divisors, whose sum is σ = 155082397398. Its totient is φ = 155082397396.

The previous prime is 155082397369. The next prime is 155082397451. The reversal of 155082397397 is 793793280551.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127084407121 + 27997990276 = 356489^2 + 167326^2 .

It is a cyclic number.

It is not a de Polignac number, because 155082397397 - 2¹⁰ = 155082396373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155082397697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77541198698 + 77541198699.

It is an arithmetic number, because the mean of its divisors is an integer number (77541198699).

Almost surely, 2^155082397397 is an apocalyptic number.

It is an amenable number.

155082397397 is a deficient number, since it is larger than the sum of its proper divisors (1).

155082397397 is an equidigital number, since it uses as much as digits as its factorization.

155082397397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14288400, while the sum is 59.

The spelling of 155082397397 in words is "one hundred fifty-five billion, eighty-two million, three hundred ninety-seven thousand, three hundred ninety-seven".