151722541 has 2 divisors, whose sum is σ = 151722542. Its totient is φ = 151722540.

The previous prime is 151722539. The next prime is 151722553. The reversal of 151722541 is 145227151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99102025 + 52620516 = 9955^2 + 7254^2 .

It is a cyclic number.

It is not a de Polignac number, because 151722541 - 2¹ = 151722539 is a prime.

Together with 151722539, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151729541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75861270 + 75861271.

It is an arithmetic number, because the mean of its divisors is an integer number (75861271).

Almost surely, 2^151722541 is an apocalyptic number.

It is an amenable number.

151722541 is a deficient number, since it is larger than the sum of its proper divisors (1).

151722541 is an equidigital number, since it uses as much as digits as its factorization.

151722541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2800, while the sum is 28.

The square root of 151722541 is about 12317.5704179030. The cubic root of 151722541 is about 533.3554073763.

Adding to 151722541 its reverse (145227151), we get a palindrome (296949692).

The spelling of 151722541 in words is "one hundred fifty-one million, seven hundred twenty-two thousand, five hundred forty-one".