155401347 has 8 divisors (see below), whose sum is σ = 207615744. Its totient is φ = 103393928.

The previous prime is 155401333. The next prime is 155401381. The reversal of 155401347 is 743104551.

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

It is a cyclic number.

It is not a de Polignac number, because 155401347 - 2⁴ = 155401331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155401397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49983 + ... + 53000.

It is an arithmetic number, because the mean of its divisors is an integer number (25951968).

Almost surely, 2^155401347 is an apocalyptic number.

155401347 is a deficient number, since it is larger than the sum of its proper divisors (52214397).

155401347 is a wasteful number, since it uses less digits than its factorization.

155401347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103489.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 155401347 is about 12466.0076608351. The cubic root of 155401347 is about 537.6317724156.

Adding to 155401347 its reverse (743104551), we get a palindrome (898505898).

The spelling of 155401347 in words is "one hundred fifty-five million, four hundred one thousand, three hundred forty-seven".