155471943 has 16 divisors (see below), whose sum is σ = 226713600. Its totient is φ = 93986880.

The previous prime is 155471923. The next prime is 155471947. The reversal of 155471943 is 349174551.

It is not a de Polignac number, because 155471943 - 2¹² = 155467847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155471947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7738 + ... + 19256.

It is an arithmetic number, because the mean of its divisors is an integer number (14169600).

Almost surely, 2^155471943 is an apocalyptic number.

155471943 is a deficient number, since it is larger than the sum of its proper divisors (71241657).

155471943 is a wasteful number, since it uses less digits than its factorization.

155471943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11942.

The product of its digits is 75600, while the sum is 39.

The square root of 155471943 is about 12468.8388793825. The cubic root of 155471943 is about 537.7131721962.

The spelling of 155471943 in words is "one hundred fifty-five million, four hundred seventy-one thousand, nine hundred forty-three".