147551 has 2 divisors, whose sum is σ = 147552. Its totient is φ = 147550.

The previous prime is 147547. The next prime is 147557. The reversal of 147551 is 155741.

It is a weak prime.

It is an emirp because it is prime and its reverse (155741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147551 - 2² = 147547 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73775 + 73776.

It is an arithmetic number, because the mean of its divisors is an integer number (73776).

2¹⁴⁷⁵⁵¹ is an apocalyptic number.

147551 is a deficient number, since it is larger than the sum of its proper divisors (1).

147551 is an equidigital number, since it uses as much as digits as its factorization.

147551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 700, while the sum is 23.

The square root of 147551 is about 384.1236779997. The cubic root of 147551 is about 52.8421791445.

The spelling of 147551 in words is "one hundred forty-seven thousand, five hundred fifty-one".