155203463 has 2 divisors, whose sum is σ = 155203464. Its totient is φ = 155203462.

The previous prime is 155203439. The next prime is 155203481. The reversal of 155203463 is 364302551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155203463 - 2²⁰ = 154154887 is a prime.

It is a super-2 number, since 2×155203463² = 48176229854384738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155203063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77601731 + 77601732.

It is an arithmetic number, because the mean of its divisors is an integer number (77601732).

Almost surely, 2^155203463 is an apocalyptic number.

155203463 is a deficient number, since it is larger than the sum of its proper divisors (1).

155203463 is an equidigital number, since it uses as much as digits as its factorization.

155203463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 155203463 is about 12458.0681889288. The cubic root of 155203463 is about 537.4034734181.

The spelling of 155203463 in words is "one hundred fifty-five million, two hundred three thousand, four hundred sixty-three".