155340454 has 8 divisors (see below), whose sum is σ = 233113248. Its totient is φ = 77636040.

The previous prime is 155340391. The next prime is 155340463. The reversal of 155340454 is 454043551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×155340454² = 48261313297852232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10977 + ... + 20764.

It is an arithmetic number, because the mean of its divisors is an integer number (29139156).

Almost surely, 2^155340454 is an apocalyptic number.

155340454 is a deficient number, since it is larger than the sum of its proper divisors (77772794).

155340454 is a wasteful number, since it uses less digits than its factorization.

155340454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34190.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 155340454 is about 12463.5650598053. The cubic root of 155340454 is about 537.5615407453.

The spelling of 155340454 in words is "one hundred fifty-five million, three hundred forty thousand, four hundred fifty-four".