151697542349 has 8 divisors (see below), whose sum is σ = 155844627960. Its totient is φ = 147552938496.

The previous prime is 151697542327. The next prime is 151697542361. The reversal of 151697542349 is 943245796151.

It can be written as a sum of positive squares in 4 ways, for example, as 34609021225 + 117088521124 = 186035^2 + 342182^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151697542349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151697542294 and 151697542303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151697542309) 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, 496184 + ... + 741345.

It is an arithmetic number, because the mean of its divisors is an integer number (19480578495).

Almost surely, 2^151697542349 is an apocalyptic number.

It is an amenable number.

151697542349 is a deficient number, since it is larger than the sum of its proper divisors (4147085611).

151697542349 is a wasteful number, since it uses less digits than its factorization.

151697542349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240879.

The product of its digits is 8164800, while the sum is 56.

The spelling of 151697542349 in words is "one hundred fifty-one billion, six hundred ninety-seven million, five hundred forty-two thousand, three hundred forty-nine".