431340134 has 4 divisors (see below), whose sum is σ = 647010204. Its totient is φ = 215670066.

The previous prime is 431340101. The next prime is 431340157. The reversal of 431340134 is 431043134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431043134 = 2 ⋅215521567.

It is a super-2 number, since 2×431340134² = 372108622398275912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107835032 + ... + 107835035.

It is an arithmetic number, because the mean of its divisors is an integer number (161752551).

Almost surely, 2^431340134 is an apocalyptic number.

431340134 is a deficient number, since it is larger than the sum of its proper divisors (215670070).

431340134 is a wasteful number, since it uses less digits than its factorization.

431340134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215670069.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 431340134 is about 20768.7297156085. The cubic root of 431340134 is about 755.5675360829.

Adding to 431340134 its reverse (431043134), we get a palindrome (862383268).

The spelling of 431340134 in words is "four hundred thirty-one million, three hundred forty thousand, one hundred thirty-four".