1340432151 has 24 divisors (see below), whose sum is σ = 1857410304. Its totient is φ = 859469520.

The previous prime is 1340432143. The next prime is 1340432173. The reversal of 1340432151 is 1512340431.

It is a happy number.

It is not a de Polignac number, because 1340432151 - 2³ = 1340432143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340432141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 489456 + ... + 492186.

It is an arithmetic number, because the mean of its divisors is an integer number (77392096).

Almost surely, 2^1340432151 is an apocalyptic number.

1340432151 is a deficient number, since it is larger than the sum of its proper divisors (516978153).

1340432151 is an equidigital number, since it uses as much as digits as its factorization.

1340432151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899 (or 2840 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1340432151 is about 36611.9126924557. The cubic root of 1340432151 is about 1102.5922749162.

Adding to 1340432151 its reverse (1512340431), we get a palindrome (2852772582).

The spelling of 1340432151 in words is "one billion, three hundred forty million, four hundred thirty-two thousand, one hundred fifty-one".